A reduced-to-the-pole magnetic anomaly chart of the region west of Iberia, including the Ocean Drilling Program Leg 149 sites, has been produced at a scale of 1:2.4 million. Data from the Atlantic Geoscience Centre Magnetic Compilation Project database and recent Leg 149 site surveys were corrected for secular and diurnal variations, geomagnetic instability, and crossover errors. The resulting 424,777 data points were gridded at 5 km and processed to transfer the anomalies to the pole. The grid was contoured at 25-nT intervals and colored to produce the chart presented as a foldout in the back pocket of this volume.
Date of initial receipt: 28 November 1994
Date of acceptance: 30 May 1995
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